Uma has a cold, so Oobi and Kako spend the day trying to make her feel better. Grampu explains that what Uma really needs to do is rest. The boys sing Uma a beautiful lullaby until she falls asleep. Soon, she's back to her healthy self. — ABC Television (source)
Oobi and Kako are in the kitchen, playing "pat-a-cake." They invite the viewers to join them, but they stop when they hear Uma sneezing. She explains that she doesn't feel good. In fact, she is ill. Oobi calls for Grampu, who checks Uma's temperature and discovers that she's come down with a fever. He asks Oobi and Kako to get her tissues and a juice box. He tells Uma to lie on the couch while he makes some soup. Oobi and Kako are upset and promise to make Uma feel well again.
The boys make a "get better" card by taking a sheet of purple construction paper and decorating it with things Uma likes (confetti, colors, and sparkles). Kako realizes that Uma really likes Oobi, so he makes an opening for Oobi's head inside the card. The boys show the card to Uma, and it does make her feel happier, but not any less sick. They do a little dance for her, but none of their efforts work. Oobi and Kako tell Grampu that Uma is still sick even though they are trying to make her better. He assures them that Uma just needs to rest and will feel better soon.
The boys decide to sing Uma a lullaby until she falls asleep. The next day, Uma is back to her healthy self. She joins Oobi and Kako in a rhyming game to celebrate. They find different things that rhyme with "-eez" until a strong wind blows everything they found onto them. Uma ends up covered in tree leaves, Oobi gets covered in peas, and Kako's hat gets replaced with cheese. They all laugh as the episode ends.